/**
 * Copyright 2011-2017 GatlingCorp (http://gatling.io)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.gatling.jms.client

import java.util.concurrent.ConcurrentHashMap
import javax.jms.{ Connection, Destination }

import io.gatling.commons.model.Credentials
import io.gatling.core.config.GatlingConfiguration
import io.gatling.core.stats.StatsEngine
import io.gatling.jms.protocol.JmsMessageMatcher
import io.gatling.jms.request._

import akka.actor.ActorSystem

class JmsConnection(
    connection:      Connection,
    val credentials: Option[Credentials],
    system:          ActorSystem,
    statsEngine:     StatsEngine,
    configuration:   GatlingConfiguration
) {

  private val sessionPool = new JmsSessionPool(connection)

  private val staticDestinations = new ConcurrentHashMap[JmsDestination, Destination]

  def destination(jmsDestination: JmsDestination): Destination = {
    val jmsSession = sessionPool.jmsSession()
    jmsDestination match {
      case JmsTemporaryQueue | JmsTemporaryTopic => jmsDestination.create(jmsSession)
      case _                                     => staticDestinations.computeIfAbsent(jmsDestination, _ => jmsDestination.create(jmsSession))
    }
  }

  private val producerPool = new JmsProducerPool(sessionPool)

  def producer(destination: Destination, deliveryMode: Int): ThreadLocal[JmsProducer] =
    producerPool.producer(destination, deliveryMode)

  private val trackerPool = new JmsTrackerPool(sessionPool, system, statsEngine, configuration)

  def tracker(destination: Destination, selector: Option[String], messageMatcher: JmsMessageMatcher): JmsTracker =
    trackerPool.tracker(destination, selector, messageMatcher)

  def close(): Unit = {
    producerPool.close()
    trackerPool.close()
    sessionPool.close()
    connection.close()
  }
}
